On 22 August, at the SPIE OPTIC + PHOTONICS Conference, Professor Cornelius Hahlweg (bbw Hochschule Berlin) delivered a lecture titled “Optics, art, and sound: celebrating 100 years of Kaluza’s 5th dimension in a geographically distributed interactive hybrid exhibition” about the exhibition project and the making of the film “Colours, Shapes and Sounds in the World of Mathematics: 100…